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/*
* Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8009724
* @summary adding DocTreePath and DocTreePathScanner
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.file
*/
import com.sun.source.doctree.DocCommentTree;
import com.sun.source.doctree.DocTree;
import com.sun.source.doctree.DocTree.Kind;
import com.sun.source.doctree.DocTreeVisitor;
import com.sun.source.tree.ClassTree;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.MethodTree;
import com.sun.source.tree.Tree;
import com.sun.source.tree.VariableTree;
import com.sun.source.util.DocTreePath;
import com.sun.source.util.DocTreePathScanner;
import com.sun.source.util.DocTreeScanner;
import com.sun.source.util.DocTrees;
import com.sun.source.util.JavacTask;
import com.sun.source.util.TreePath;
import com.sun.source.util.TreePathScanner;
import com.sun.tools.javac.api.JavacTool;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import javax.lang.model.element.Name;
import javax.tools.JavaFileObject;
import javax.tools.StandardJavaFileManager;
public class DocTreePathScannerTest {
public static void main(String... args) throws Exception {
DocTreePathScannerTest t = new DocTreePathScannerTest();
t.run();
}
void run() throws Exception {
List<File> files = new ArrayList<File>();
File testSrc = new File(System.getProperty("test.src"));
for (File f: testSrc.listFiles()) {
if (f.isFile() && f.getName().endsWith(".java"))
files.add(f);
}
JavacTool javac = JavacTool.create();
try (StandardJavaFileManager fm = javac.getStandardFileManager(null, null, null)) {
Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjectsFromFiles(files);
JavacTask t = javac.getTask(null, fm, null, null, null, fos);
DocTrees trees = DocTrees.instance(t);
Iterable<? extends CompilationUnitTree> units = t.parse();
DeclScanner ds = new DeclScanner(trees);
for (CompilationUnitTree unit: units) {
ds.scan(unit, null);
}
if (errors > 0)
throw new Exception(errors + " errors occurred");
}
}
void error(String msg) {
System.err.println("Error: " + msg);
errors++;
}
int errors;
class DeclScanner extends TreePathScanner<Void, Void> {
DocTrees trees;
DocTreePathScanner<Void,Void> cs;
DeclScanner(DocTrees trees) {
this.trees = trees;
cs = new CommentPathScanner();
}
@Override
public Void visitClass(ClassTree tree, Void ignore) {
super.visitClass(tree, ignore);
visitDecl(tree, tree.getSimpleName());
return null;
}
@Override
public Void visitMethod(MethodTree tree, Void ignore) {
super.visitMethod(tree, ignore);
visitDecl(tree, tree.getName());
return null;
}
@Override
public Void visitVariable(VariableTree tree, Void ignore) {
super.visitVariable(tree, ignore);
visitDecl(tree, tree.getName());
return null;
}
void visitDecl(Tree tree, Name name) {
TreePath path = getCurrentPath();
DocCommentTree dc = trees.getDocCommentTree(path);
if (dc != null)
cs.scan(new DocTreePath(path, dc), null);
}
}
class CommentPathScanner extends DocTreePathScanner<Void, Void> {
CommentPathScanner() {}
@Override
public Void scan(final DocTree tree, Void ignore) {
if (tree != null) {
DocTree previous = null;
for (DocTree current : getCurrentPath()) {
if (previous != null) {
final List<DocTree> children = new ArrayList<>();
current.accept(new DocTreeScanner<Void, Void>() {
@Override public Void scan(DocTree node, Void p) {
children.add(node);
return null;
}
}, null);
if (!children.contains(previous)) {
error("Invalid DocTreePath for: " + tree);
}
}
previous = current;
}
}
return super.scan(tree, ignore);
}
}
}
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